{"id":333,"date":"2018-01-06T22:02:19","date_gmt":"2018-01-06T21:02:19","guid":{"rendered":"http:\/\/astroriom.net\/wp1\/?p=333"},"modified":"2023-11-01T19:28:32","modified_gmt":"2023-11-01T18:28:32","slug":"observer-le-soleil","status":"publish","type":"post","link":"https:\/\/astroriom.net\/v2\/?p=333","title":{"rendered":"Observer le Soleil"},"content":{"rendered":"

\t\t\t\t\u00a0<\/span>L\u2019observation solaire<\/span><\/b><\/span><\/p>\n

SOUS PEINE DE BLESSURE OCULAIRE GRAVE, LE SOLEIL NE S\u2019OBSERVE QU\u2019AU TRAVERS DE FILTRES SP\u00c9CIALEMENT CON\u00c7US \u00c0 CET EFFET.<\/span><\/span><\/h1>\n

Notre club dispose d\u2019instruments pour observer deux zones du soleil\u00a0<\/b>:<\/span><\/p>\n

La photosph\u00e8re\u00a0<\/b>: c\u2019est la surface du soleil discernable en lumi\u00e8re visible, c\u2019est-\u00e0-dire tel que nous le verrions si nous pouvions le regarder \u00e0 l\u2019oeil nu\u00a0.<\/span><\/span><\/span><\/p>\n

– Sans instrument avec le vis\u00e9clipse qui est muni d\u2019un filtre de soudure \u00e0 l\u2019arc grade 14 et qui permet de regarder le soleil en toute s\u00e9curit\u00e9 et de discerner \u00e0 sa surface d\u2019\u00e9ventuelles taches solaires.<\/span><\/span><\/span><\/p>\n

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– <\/b>Avec un instrument muni d\u2019un filtre (de densit\u00e9 5) \u00e0 son entr\u00e9e de fa\u00e7on \u00e0 ne laisser passer que 1\/100 000 e <\/sup>du rayonnement solaire .<\/span><\/p>\n

Filtre densit\u00e9 5 en verre\u00a0: <\/b><\/span><\/p>\n

\"\"<\/p>\n

Filtre densit\u00e9 5 en feuille Astrosolar:<\/b><\/span><\/p>\n

\"\"<\/p>\n

Ainsi \u00e9quip\u00e9, l\u2019instrument permet de d\u00e9couvrir la surface de la photosph\u00e8re (voir photo ci-dessous) avec principalement ses taches solaires qui sont les zones d\u2019\u00e9mergence des protub\u00e9rances . <\/span><\/p>\n

\"\"<\/p>\n

La chromosph\u00e8re\u00a0: <\/b>c\u2019est la surface juste sup\u00e9rieure \u00e0 la photosph\u00e8re. De la chromosph\u00e8re, nous pouvons \u00e0 partir d\u2019instruments sp\u00e9cialis\u00e9s (<\/span>ne laissant passer que la longueur d\u2019onde de l\u2019hydrog\u00e8ne alpha<\/span>) observer les jets de mati\u00e8re qu\u2019expulse le soleil et que l\u2019on nomme protub\u00e9rances .<\/span><\/span><\/span><\/p>\n

Un exemple d\u2019observation de la chromosph\u00e8re\u00a0:<\/span><\/b><\/span><\/span><\/p>\n

\"\"\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00a0L\u2019observation solaire SOUS PEINE DE BLESSURE OCULAIRE GRAVE, LE SOLEIL NE S\u2019OBSERVE QU\u2019AU TRAVERS DE FILTRES SP\u00c9CIALEMENT CON\u00c7US \u00c0 CET EFFET. Notre club dispose d\u2019instruments pour observer deux zones du soleil\u00a0: La photosph\u00e8re\u00a0: c\u2019est la surface du soleil discernable en lumi\u00e8re visible, c\u2019est-\u00e0-dire tel que nous le verrions si nous pouvions le regarder \u00e0 l\u2019oeil … Lire la suite de Observer le Soleil<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-333","post","type-post","status-publish","format-standard","hentry","category-soleil","no-featured-image"],"_links":{"self":[{"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/posts\/333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=333"}],"version-history":[{"count":1,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/posts\/333\/revisions"}],"predecessor-version":[{"id":1188,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/posts\/333\/revisions\/1188"}],"wp:attachment":[{"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}